national park, northwestern Washington, U.S., established in 1938 to preserve the Olympic Mountains and their magnificent forests and wildlife. The park, which covers 1,442 square miles (3,735 square km), includes a strip of Pacific Northwest shoreline geographically separated from the rest of the park. There are active glaciers on the highest peak, Mount Olympus (7,965 feet 【2,428 m】), and others, more than 60 glaciers in all. On the mountains' western slopes, where rainfall is very heavy, grows a lush rain forest (see video-->) in which conifers reach tremendous size. The forest floor is carpeted with dense mosses and huge fungi. The eastern slopes are less thickly forested and feature lakes and meadows. The ocean-shore section contains scenic beaches, islets, and points; three Indian reservations lie within it.